parliament
US /ˈpɑːr.lə.mənt/
UK /ˈpɑːr.lə.mənt/

1.
the highest legislature in the UK, consisting of the Sovereign, the House of Lords, and the House of Commons
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The new law was passed by Parliament.
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Members of Parliament debated the budget.
2.
a legislative body of a country or region
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The country's parliament is responsible for making laws.
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Elections for the European Parliament are held every five years.